Finding the Third Proportional to 578,335 and 1,253,196

Step by Step Solution

1. Step 1: Write the proportion equation
   578,335 : 1,253,196 = 1,253,196 : x
2. Step 2: Convert to fraction form
   578,335/1,253,196 = 1,253,196/x
3. Step 3: Cross multiply
   578,335x = 1,253,196 × 1,253,196
4. Step 4: Simplify right side
   578,335x = 1,570,500,214,416
5. Step 5: Solve for x
   x = 1,570,500,214,416/578,335
6. Step 6: Final answer
   x = 2,715,554.50